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Abstract #1669

Accuracy of left ventricular function measurements using retro-gated real-time cine bSSFP cardiovascular magnetic resonance

Ben K Statton1, Alaine Berry1, Peter Kellman2, Hui Xue2, Stuart Cook3, and Declan O'Regan3
1MRC, London Institute of Medical Sciences, Imperial College London, London, United Kingdom, 2National Heart, Lung, and Blood Institute, National Institute of Health, Bethesda, MD, United States, 3MRC, London Institute of Medical Sciences, UKRI, London, United Kingdom


Cardiac magnetic resonance with a retrospective ECG-gated breath-hold cine stack is the reference standard for assessing LV volumes, however this technique is unsuitable for patients who cannot hold their breath or suffer arrhythmia. A potential solution is a “retro-gated” real-time sequence which is prospectively triggered to acquire 120 frames over multiple heartbeats in each slice. Images from a beat most closely matching the median beat length for the entire stack are then temporally interpolated to 30 output phases for each slice. This retro-gated method showed good agreement with the reference standard sequence in a cohort of healthy volunteers.

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